52731-38-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52731-38-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,7,3 and 1 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 52731-38:
(7*5)+(6*2)+(5*7)+(4*3)+(3*1)+(2*3)+(1*8)=111
111 % 10 = 1
So 52731-38-1 is a valid CAS Registry Number.
InChI:InChI=1/C21H20O10/c1-7-2-9-14(11(24)3-7)18(27)15-10(16(9)25)4-8(23)5-12(15)30-21-20(29)19(28)17(26)13(6-22)31-21/h2-5,13,17,19-24,26,28-29H,6H2,1H3/t13-,17-,19+,20-,21-/m1/s1